Packing-auger



O. R. HYLAND.

PACKING AUGER. APPLICATION FILED MAY 29, 19:9.

1,350,999. I Patented Aug. 24, 1920.

WIT/V588 ,6 .17 [and c a 1 4 Bi/ (/c/a/A A TTORNEYS UNITED STATES PATENT OFFICE.

PACKING-AUGER.

Specification of Letters Patent.

Patented Aug. 24, 1920.

Application filed May 29, 1919. Serial No. 300,680.

To all whom it may concern:

Be it known that I, OLTRON R. HYLAND, a citizen of the United States, and a resident of Astoria, in the county of Clatsop and State of Oregon, have invented certain new and useful Improvements in Packing- Augers, of which the following is a specification.

My invention is an improvement in packing angers, and has for its object to provide an auger of the character specified especially adapted for packing comminuted substances in bags, as, for instance, flour and the like, wherein the arrangement is such that when the bag is filled with the required weight the vanes of the auger will be automatically thrown out of packing position into a position to check the further flow of matter to be packed.

In the drawings:

Figure 1 is a side view of the improved packer with the vanes in packing position;

Fig. 2 is a similar view, with the vanes in inoperative position;

Fig. 3 is a top plan View.

In the present embodiment of the invention, the improved packer comprises a hub 1 which is secured to the usual shaft 2 by means of a set screw 3 or the like. This packer has similar vanes, the said vanes being oppositely arranged and extending spirally of the hub, and each vane consists of a fixed portion 4 and a movable portion 5 hinged to the fixed portion, as indicated at 6.

The movable portions of the vanes are normally pressed downward into inoperative position by means of plate springs 7. Each of these springs is secured to the fixed portion of the vane, and overlies at its free end the movable portion, and acts normally to limit the upward movement of the movable portion to a position where it is continuous with the fixed portion.

The tension of the springs may be regulated by means of a set screw 8 which is threaded through the'fixed portion of the vane into engagement with the spring.

In operation, when a predetermined weight of flour has been packed in the bag and the weighing table permits the filled bag to move downward the weight of the flour and the springs 7 will swing them down in the position of Fig. 2, thus cutting off the flow of flour and preventing leakage of the same past the auger. So long as there is pressure in front of the blade the movable portion will be held in the position of Fig. 1, that is, in packing position.

I claim:

A packing auger comprising in combination with the hub and the packing vanes, of a movable portion or gate hinged to the upper end of each vane and adapted to close down in lapping relation upon the other vane to close the space between the vanes, each movable portion or gate having its free end Ilp-CllI'VQd to lie out of engagement with the other vane when the gate is closed to be engaged by the material to be packed to lift the gate, and a spring secured to each vane and engaging the adjacent gate or movable portion to limit the upward movement thereof to a position where such gate or movable portion is in substantial alinement with the vane.

OLTRON R. HYLAND. 

